Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duong doi co snippets" » "duong loi co snippets", "dung doi co snippets", "huong doi co snippets", "duong doi bo snippets", "duong moi co snippets", "duong hoi co snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("duong doi co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duong doi co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duong doi co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong doi co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.